#include <grid.hpp>

Collaboration diagram for Grid< Device >:

Public Member Functions
	Grid (NLReader::NamelistReader &nlr, const GridFiles &grid_files, const MagneticField< DeviceType > &magnetic_field)

	Grid ()

template<class Device2 >
Grid< Device2 >	mirror () const

KOKKOS_INLINE_FUNCTION void	t_coeff (const SimdVector2D &x, const Simd< int > &itr, SimdGridVec &p) const

KOKKOS_INLINE_FUNCTION void	t_coeff_mod (const MagneticField< Device > &magnetic_field, const double r, const double z, const double psiin, const int itr, double(&p)[3]) const

KOKKOS_INLINE_FUNCTION void	t_coeff_mod (const MagneticField< Device > &magnetic_field, const SimdVector2D &xy, const Simd< double > &psiin, const Simd< int > &itr, SimdGridVec &p) const

KOKKOS_INLINE_FUNCTION void	search_tr2_no_precheck (const double r, const double z, int &itr, double(&p)[3]) const

KOKKOS_INLINE_FUNCTION void	search_tr2 (const SimdVector2D &xy, Simd< int > &itr, SimdGridVec &pout) const

KOKKOS_INLINE_FUNCTION void	search_tr_check_guess (const SimdVector2D &x, const Simd< int > &old_itr, Simd< int > &itr, SimdGridVec &p) const

KOKKOS_INLINE_FUNCTION void	psi_search (double psi, double &wp, int &ip) const

KOKKOS_INLINE_FUNCTION void	charge_search_index (const MagneticField< Device > &magnetic_field, const SimdVector2D &x, const Simd< double > &phi, const Simd< double > &psi, SimdVector2D &xff, Simd< int > &itr, SimdGridVec &p) const

KOKKOS_INLINE_FUNCTION void	charge_search_index (const MagneticField< Device > &magnetic_field, const SimdVector &v, Simd< int > &itr, SimdGridVec &p) const

KOKKOS_INLINE_FUNCTION void	charge_search_index (const MagneticField< Device > &magnetic_field, const SimdVector &v, const Simd< double > &psi, Simd< int > &itr, SimdGridVec &p) const

KOKKOS_INLINE_FUNCTION void	get_wall_index (const Simd< bool > &just_left_the_grid, const SimdVector2D &x, const Simd< int > &itr, const SimdGridVec &p, Simd< int > &widx) const

KOKKOS_INLINE_FUNCTION void	wedge_modulo_phi (Simd< double > &phi_mod) const

KOKKOS_INLINE_FUNCTION void	check_triangle (const Simd< int > &itr, Simd< bool > &wasnt_in_triangle) const

KOKKOS_INLINE_FUNCTION bool	node_is_inside_psi_range (const MagneticField< Device > &magnetic_field, const int node) const

KOKKOS_INLINE_FUNCTION int	get_plane_index (double phi) const

KOKKOS_INLINE_FUNCTION int	get_node_index (int triangle_index, int tri_vertex_index) const

KOKKOS_INLINE_FUNCTION double	node_area_to_volume (const MagneticField< Device > &magnetic_field, double area, int node_index) const

KOKKOS_INLINE_FUNCTION void	get_triangle_area_and_volume (const MagneticField< Device > &magnetic_field, int i, double &area, double &volume) const

KOKKOS_INLINE_FUNCTION double	get_r_center_of_mass (int itr) const

KOKKOS_INLINE_FUNCTION bool	node_is_in_region_1_or_2_no_wall (const int inode) const

KOKKOS_INLINE_FUNCTION bool	node_is_in_private_region_no_wall (const int inode) const

KOKKOS_INLINE_FUNCTION bool	node_is_in_included_region (const int inode, const bool exclude_private_region) const

KOKKOS_INLINE_FUNCTION bool	node_is_in_region_1_or_2 (const MagneticField< Device > &magnetic_field, const int inode) const

KOKKOS_INLINE_FUNCTION int	uses_rz_basis (const int inode) const

KOKKOS_INLINE_FUNCTION double	get_r (const int inode) const

KOKKOS_INLINE_FUNCTION double	get_dist2_from_node (const int inode, const double r, const double z) const

KOKKOS_INLINE_FUNCTION double	get_dist_from_node (const int inode, const double r, const double z) const

KOKKOS_INLINE_FUNCTION void	get_rz_coordinates (const int inode, double &r, double &z) const

KOKKOS_INLINE_FUNCTION void	get_rz_coordinates (const Simd< int > &grid_inds, SimdVector2D &x) const

KOKKOS_INLINE_FUNCTION void	set_gradient_mat_triangle (const View< int , CLayout, DeviceType > &num_t_node, const View< int , CLayout, DeviceType > &tr_node, const View< double , CLayout, DeviceType > &tr_area, const View< double ***, CLayout, DeviceType > &unit_vecs, const int i, const GradientMatrices< Device > &gradient_matrices) const

KOKKOS_INLINE_FUNCTION int	get_characteristic_length (const View< int , CLayout, DeviceType > &num_t_node, const View< int *, CLayout, DeviceType > &tr_node, const int i, double &dist_triangle, double &dist_psi, double &dist_theta) const

KOKKOS_INLINE_FUNCTION void	set_grad_matrix_from_psi_theta (bool is_psi_dir, int itr_pos, int itr_neg, double(&p_pos)[3], double(&p_neg)[3], double dl_pos, double dl_neg, int inode, const Matrix< Device > &matrix) const

void	draw_ascii_grid (MagneticField< Device > magnetic_field, double rmin, double rmax, double dr, double zmin, double zmax, double dz)

Public Attributes
int	ntriangle
	Number of grid triangles. More...

int	nnode
	Number of grid nodes. More...

int	nplanes
	Number of planes. More...

double	wedge_angle
	The size of the wedge (the model is periodic in phi, a angle of e.g. pi means half the tokamak is modeled) More...

double	delta_phi
	Distance between planes. More...

double	inv_delta_phi
	1/delta_phi More...

Kokkos::View< double *, Kokkos::LayoutRight, Device >	psi
	An array of psi coordinates. More...

Kokkos::View< double *, Kokkos::LayoutRight, Device >	bfield
	Magnetic field magnitude at nodes. More...

int	npsi_surf2

double	minval_psi_surf2

double	maxval_psi_surf2

Kokkos::View< double *, Kokkos::LayoutRight, Device >	psi_surf2

UniformRange	psi00

int	nwall

VolumesAndAreas	volumes_and_areas

Private Attributes
Kokkos::View< int *, Kokkos::LayoutRight, Device >	basis
	0 for Psi-theta, 1 for R-Z ; should be enum (and bool/char?) More...

Kokkos::View< Vertex *, Kokkos::LayoutRight, Device >	nodes

Kokkos::View< VertexMap *, Kokkos::LayoutRight, Device >	mapping

GuessTable< Device >	guess

GuessList1D< Device >	psi_guess

Kokkos::View< int *, Kokkos::LayoutRight, Device >	rgn

Kokkos::View< RZPair *, Kokkos::LayoutRight, Device >	gx

Kokkos::View< int *, Kokkos::LayoutRight, Device >	wall_nodes

Kokkos::View< int *, Kokkos::LayoutRight, Device >	node_to_wall

double	eps_flux_surface
	The minimum difference in psi that counts as being on two different flux surfaces. More...

Friends
template<class Device2 >
class	Grid

Constructor & Destructor Documentation

template<class Device >

Grid< Device >::Grid	(	NLReader::NamelistReader &	nlr,
		const GridFiles &	grid_files,
		const MagneticField< DeviceType > &	magnetic_field
	)

< Simulate a wedge of 2pi/sml_wedge_n of the full torus

< Size of the hash table used to narrow down the number of triangles in which to search a particle

< Calculate node volume using Monte-Carlo method (true), or analytic method (false)

< If \(|\nabla\psi|\) is smaller than this threshold, \(\nabla\psi\) is computed

< Size of the uniform 1D psi-grid

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template<class Device>

Grid< Device >::Grid ( )

inline

Member Function Documentation

template<class Device>

KOKKOS_INLINE_FUNCTION void Grid< Device >::charge_search_index	(	const MagneticField< Device > &	magnetic_field,
		const SimdVector2D &	x,
		const Simd< double > &	phi,
		const Simd< double > &	psi_in,
		SimdVector2D &	xff,
		Simd< int > &	itr,
		SimdGridVec &	p
	)		const

Get the grid triangle and vertex weights for a vector of locations. Name is historical and should change

Parameters

[in]	magnetic_field	The magnetic field object (currently global so technically unnecessary)
[in]	x	Vector of (r,z) coordinates
[in]	phi	Vector of phi coordinates
[in]	psi_in	Vector of psi coordinates
[out]	xff	Vector of (r,z) coordinates mapped along B-field to midplane
[out]	itr	Vector of grid triangles
[out]	p	Vector of triangle vertex weights

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template<class Device>

KOKKOS_INLINE_FUNCTION void Grid< Device >::charge_search_index	(	const MagneticField< Device > &	magnetic_field,
		const SimdVector &	v,
		Simd< int > &	itr,
		SimdGridVec &	p
	)		const

Get the grid triangle and vertex weights for a vector of locations. Name is historical and should change

Parameters

[in]	magnetic_field	The magnetic field object (currently global so technically unnecessary)
[in]	v	Vector of (r,z,phi) coordinates
[out]	itr	Vector of grid triangles
[out]	p	Vector of triangle vertex weights

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template<class Device>

KOKKOS_INLINE_FUNCTION void Grid< Device >::charge_search_index	(	const MagneticField< Device > &	magnetic_field,
		const SimdVector &	v,
		const Simd< double > &	psi,
		Simd< int > &	itr,
		SimdGridVec &	p
	)		const

Get the grid triangle and vertex weights for a vector of locations. Name is historical and should change

Parameters

[in]	magnetic_field	The magnetic field object (currently global so technically unnecessary)
[in]	v	Vector of (r,z,phi) coordinates
[in]	psi	Vector of psi coordinates
[out]	itr	Vector of grid triangles
[out]	p	Vector of triangle vertex weights

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template<class Device >

KOKKOS_INLINE_FUNCTION void Grid< Device >::check_triangle	(	const Simd< int > &	itr,
		Simd< bool > &	wasnt_in_triangle
	)		const

Check if vector of particles are in triangle

Parameters

[in]	itr	Vector of grid triangles the particles are in
[out]	wasnt_in_triangle	Vector of whether they are in a triangle

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template<class Device>

void Grid< Device >::draw_ascii_grid	(	MagneticField< Device >	magnetic_field,
		double	rmin,
		double	rmax,
		double	dr,
		double	zmin,
		double	zmax,
		double	dz
	)

inline

template<class Device >

KOKKOS_INLINE_FUNCTION int Grid< Device >::get_characteristic_length	(	const View< int *, CLayout, DeviceType > &	num_t_node,
		const View< int **, CLayout, DeviceType > &	tr_node,
		const int	i,
		double &	dist_triangle,
		double &	dist_psi,
		double &	dist_theta
	)		const

Determines characteristic distance in grad(psi) and grad(theta) direction

Parameters

[in]	num_t_node
[in]	tr_node
[in]	i	node index
[out]	dist_triangle
[out]	dist_psi
[out]	dist_theta

Returns: int error code: -3 is fatal, -2 means all vertices are on the same surface, -1 means?

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template<class Device >

KOKKOS_INLINE_FUNCTION double Grid< Device >::get_dist2_from_node	(	const int	inode,
		const double	r,
		const double	z
	)		const

Gets the square of the distance from a grid vertex of the input (r,z) coordinates. The square of the distance is sufficient in some algorithms, and avoids a costly square root. If the distance itself is needed, use get_dist_from_node

Parameters

[in]	inode	grid node
[in]	r	r coordinate of input point
[in]	z	z coordinate of input point

Returns: double the square of the distance

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template<class Device >

KOKKOS_INLINE_FUNCTION double Grid< Device >::get_dist_from_node	(	const int	inode,
		const double	r,
		const double	z
	)		const

Gets the distance from a grid vertex of the input (r,z) coordinates.

Parameters

[in]	inode	grid node
[in]	r	r coordinate of input point
[in]	z	z coordinate of input point

Returns: double the distance

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template<class Device >

KOKKOS_INLINE_FUNCTION int Grid< Device >::get_node_index	(	int	triangle_index,
		int	tri_vertex_index
	)		const

Returns the index of the node (0-indexed), for a given triangle and triangle vertex index

Parameters

[in]	triangle_index	the index of the triangle (1-indexed)
[in]	tri_vertex_index	the index of the requested vertex on the triangle

Returns: int the index of the node (0-indexed)

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template<class Device >

KOKKOS_INLINE_FUNCTION int Grid< Device >::get_plane_index ( double phi ) const

Returns the index of the plane, rounded down.

Parameters

[in] phi the phi value

Returns: int the index of the plane

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template<class Device >

KOKKOS_INLINE_FUNCTION double Grid< Device >::get_r ( const int inode ) const

Accesses the r coordinate of the grid node

Parameters

[in] inode grid node to check

Returns: double the r coordinate

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template<class Device >

KOKKOS_INLINE_FUNCTION double Grid< Device >::get_r_center_of_mass ( int itr ) const

Returns r coordinate of center of mass of a triangle

Parameters

[in] i is the triangle index (0-indexed)

Returns: double r_center_of_mass

template<class Device >

KOKKOS_INLINE_FUNCTION void Grid< Device >::get_rz_coordinates	(	const int	inode,
		double &	r,
		double &	z
	)		const

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template<class Device >

KOKKOS_INLINE_FUNCTION void Grid< Device >::get_rz_coordinates	(	const Simd< int > &	grid_inds,
		SimdVector2D &	x
	)		const

Returns vector of rz coordinates of the input node indices

Parameters

[in]	grid_inds	Vector of node indices
[out]	x	Vector of rz coordinates

template<class Device>

KOKKOS_INLINE_FUNCTION void Grid< Device >::get_triangle_area_and_volume	(	const MagneticField< Device > &	magnetic_field,
		int	i,
		double &	area,
		double &	volume
	)		const

Returns analytical calculation of triangle area and projected volume

Parameters

[in]	magnetic_field	is the magnetic field
[in]	i	is the triangle index (0-indexed)
[out]	area	is the triangle area
[out]	volume	is the triangle projected volume

Returns: void

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template<class Device >

KOKKOS_INLINE_FUNCTION void Grid< Device >::get_wall_index	(	const Simd< bool > &	just_left_the_grid,
		const SimdVector2D &	x,
		const Simd< int > &	itr,
		const SimdGridVec &	p,
		Simd< int > &	widx
	)		const

Find nearest wall point for a vector of locations.

Parameters

[in]	just_left_the_grid	Vector of whether particles have left the grid
[in]	x	Vector of (r,z) coordinates
[in]	itr	Vector of grid triangles the particles were last in
[in]	p	Vector of the vertex weighting in those triangles
[out]	widx	Vector of wall point indices

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template<class Device>

template<class Device2 >

Grid<Device2> Grid< Device >::mirror ( ) const

inline

template<class Device>

KOKKOS_INLINE_FUNCTION double Grid< Device >::node_area_to_volume	(	const MagneticField< Device > &	magnetic_field,
		double	area,
		int	node_index
	)		const

Returns analytical calculation of node volume by projecting the node area into the toroidal direction Assumes the center of mass is the node

Parameters

[in]	magnetic_field	is the magnetic field
[in]	area	is the area of the node
[in]	node_index	is the node index

Returns: double the area owned by the node

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template<class Device >

KOKKOS_INLINE_FUNCTION bool Grid< Device >::node_is_in_included_region	(	const int	inode,
		const bool	exclude_private_region
	)		const

Checks if a grid node lies within an included region. This excludes wall nodes and the private region if specified.

Parameters

[in]	inode	grid node to check
[in]	exclude_private_region	whether to private region is excluded

Returns: bool true if in included region

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template<class Device >

KOKKOS_INLINE_FUNCTION bool Grid< Device >::node_is_in_private_region_no_wall ( const int inode ) const

Checks if a grid node lies within region 3. Excludes wall since rgn is a different value there

Parameters

[in] inode grid node to check

Returns: bool true if in region 3

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template<class Device>

KOKKOS_INLINE_FUNCTION bool Grid< Device >::node_is_in_region_1_or_2	(	const MagneticField< Device > &	magnetic_field,
		const int	inode
	)		const

Checks if a grid node lies within region 1 or 2. Note this is subtly different from rgn, because rgn also has a wall option

Parameters

[in]	magnetic_field	the magnetic field object (currently global so technically unnecessary)
[in]	inode	grid node to check

Returns: bool true if in region 1 or 2

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template<class Device >

KOKKOS_INLINE_FUNCTION bool Grid< Device >::node_is_in_region_1_or_2_no_wall ( const int inode ) const

Checks if a grid node lies within region 1 or 2. Excludes wall since rgn is a different value there

Parameters

[in] inode grid node to check

Returns: bool true if in region 1 or 2

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template<class Device>

KOKKOS_INLINE_FUNCTION bool Grid< Device >::node_is_inside_psi_range	(	const MagneticField< Device > &	magnetic_field,
		const int	node
	)		const

Checks if a grid node lies within the simulation domain (radially).

Parameters

[in]	magnetic_field	the magnetic field object (currently global so technically unnecessary)
[in]	node	grid node to check (0-indexed)

Returns: bool true if inside, false if outside

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template<class Device >

KOKKOS_INLINE_FUNCTION void Grid< Device >::psi_search	(	double	psi,
		double &	wp,
		int &	ip
	)		const

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template<class Device >

KOKKOS_INLINE_FUNCTION void Grid< Device >::search_tr2	(	const SimdVector2D &	xy,
		Simd< int > &	itr,
		SimdGridVec &	pout
	)		const

Determine triangle location and triangle vertex weights of vector of locations, first checking the particles have left their previous triangle, and if so doing a search

Parameters

[in]	xy	Vector of (r,z) coordinates
[out]	itr	Vector of triangle locations
[out]	pout	Vector of triangle vertex weights

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template<class Device >

KOKKOS_INLINE_FUNCTION void Grid< Device >::search_tr2_no_precheck	(	const double	r,
		const double	z,
		int &	itr,
		double(&)	p[3]
	)		const

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template<class Device >

KOKKOS_INLINE_FUNCTION void Grid< Device >::search_tr_check_guess	(	const SimdVector2D &	x,
		const Simd< int > &	old_itr,
		Simd< int > &	itr,
		SimdGridVec &	p
	)		const

A check to see if vector of particles has stayed in the same triangle since last time. If so just recalculate p weights

Parameters

[in]	x	Vector of (r,z) coordinates
[in]	old_itr	Vector of old triangle location
[out]	itr	Vector of new triangle location (same as old if unchanged, -1 if search is needed)
[out]	p	Vector of p weights if in same triangle

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template<class Device>

KOKKOS_INLINE_FUNCTION void Grid< Device >::set_grad_matrix_from_psi_theta	(	bool	is_psi_dir,
		int	itr_pos,
		int	itr_neg,
		double(&)	p_pos[3],
		double(&)	p_neg[3],
		double	dl_pos,
		double	dl_neg,
		int	inode,
		const Matrix< Device > &	matrix
	)		const

Sets gradient matrix values based on psi-theta triangle weights

Parameters

[in]	is_psi_dir	whether the gradient matrix is psi or theta direction (just for the error message)
[in]	itr_pos	the triangle index in the positive direction
[in]	itr_neg	the triangle index in the negative direction
[in]	p_pos	the triangle weights in the positive direction
[in]	p_neg	the triangle weights in the negative direction
[in]	dl_pos	the distance in the positive direction
[in]	dl_neg	the distance in the negative direction
[in]	inode	the node index
[out]	matrix	the gradient matrix being updates

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template<class Device>

KOKKOS_INLINE_FUNCTION void Grid< Device >::set_gradient_mat_triangle	(	const View< int *, CLayout, DeviceType > &	num_t_node,
		const View< int **, CLayout, DeviceType > &	tr_node,
		const View< double *, CLayout, DeviceType > &	tr_area,
		const View< double ***, CLayout, DeviceType > &	unit_vecs,
		const int	i,
		const GradientMatrices< Device > &	gradient_matrices
	)		const

Sets gradient matrix values for a given vertex

Parameters

[in]	num_t_node
[in]	tr_node
[in]	tr_area
[in]	unit_vecs
[in]	i	node index
[out]	gradient_matrices	Gradient matrices

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template<class Device >

KOKKOS_INLINE_FUNCTION void Grid< Device >::t_coeff	(	const SimdVector2D &	x,
		const Simd< int > &	itr,
		SimdGridVec &	p
	)		const

Calculate a vector of barycentric coordinates p from real-space coordinates x in triangle itr.

Parameters

[in]	x	Vector of (r,z) coordinates
[in]	itr	Vector of triangles
[out]	p	Vector of the weights of the triangle vertices

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template<class Device>

KOKKOS_INLINE_FUNCTION void Grid< Device >::t_coeff_mod	(	const MagneticField< Device > &	magnetic_field,
		const double	r,
		const double	z,
		const double	psiin,
		const int	itr,
		double(&)	p[3]
	)		const

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template<class Device>

KOKKOS_INLINE_FUNCTION void Grid< Device >::t_coeff_mod	(	const MagneticField< Device > &	magnetic_field,
		const SimdVector2D &	xy,
		const Simd< double > &	psiin,
		const Simd< int > &	itr,
		SimdGridVec &	p
	)		const

template<class Device >

KOKKOS_INLINE_FUNCTION int Grid< Device >::uses_rz_basis ( const int inode ) const

Whether the field uses an r-z or a psi-theta basis.

Parameters

[in] inode grid node to check

Returns: int 1 if rz basis, 0 if psi-theta basis

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template<class Device >

KOKKOS_INLINE_FUNCTION void Grid< Device >::wedge_modulo_phi ( Simd< double > & phi_mod ) const

Modulo phi in place: Keep phi between 0 and wedge_angle. Best algorithm as long as the particles haven't left the wedge multiple times over

Parameters

[in,out] phi_mod Vector of phi coordinates

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Friends And Related Function Documentation

template<class Device>

template<class Device2 >

friend class Grid

friend

Member Data Documentation

template<class Device>

Kokkos::View<int*, Kokkos::LayoutRight,Device> Grid< Device >::basis

private

0 for Psi-theta, 1 for R-Z ; should be enum (and bool/char?)

template<class Device>

Kokkos::View<double*,Kokkos::LayoutRight,Device> Grid< Device >::bfield

Magnetic field magnitude at nodes.

template<class Device>

double Grid< Device >::delta_phi

Distance between planes.

template<class Device>

double Grid< Device >::eps_flux_surface

private

The minimum difference in psi that counts as being on two different flux surfaces.

template<class Device>

GuessTable<Device> Grid< Device >::guess

private

template<class Device>

Kokkos::View<RZPair*,Kokkos::LayoutRight,Device> Grid< Device >::gx

private

template<class Device>

double Grid< Device >::inv_delta_phi

1/delta_phi

template<class Device>

Kokkos::View<VertexMap*,Kokkos::LayoutRight,Device> Grid< Device >::mapping

private

template<class Device>

double Grid< Device >::maxval_psi_surf2

template<class Device>

double Grid< Device >::minval_psi_surf2

template<class Device>

int Grid< Device >::nnode

Number of grid nodes.

template<class Device>

Kokkos::View<int*,Kokkos::LayoutRight,Device> Grid< Device >::node_to_wall

private

template<class Device>

Kokkos::View<Vertex*,Kokkos::LayoutRight,Device> Grid< Device >::nodes

private

template<class Device>

int Grid< Device >::nplanes

Number of planes.

template<class Device>

int Grid< Device >::npsi_surf2

template<class Device>

int Grid< Device >::ntriangle

Number of grid triangles.

template<class Device>

int Grid< Device >::nwall

template<class Device>

Kokkos::View<double*,Kokkos::LayoutRight,Device> Grid< Device >::psi

An array of psi coordinates.

template<class Device>

UniformRange Grid< Device >::psi00

template<class Device>

GuessList1D<Device> Grid< Device >::psi_guess

private

template<class Device>

Kokkos::View<double*,Kokkos::LayoutRight,Device> Grid< Device >::psi_surf2

template<class Device>

Kokkos::View<int*,Kokkos::LayoutRight,Device> Grid< Device >::rgn

private

template<class Device>

VolumesAndAreas Grid< Device >::volumes_and_areas

template<class Device>

Kokkos::View<int*,Kokkos::LayoutRight,Device> Grid< Device >::wall_nodes

private

template<class Device>

double Grid< Device >::wedge_angle

The size of the wedge (the model is periodic in phi, a angle of e.g. pi means half the tokamak is modeled)

The documentation for this class was generated from the following files:

/u/gitlab-xgc/builds/YGMz2TJ8/1/xgc/XGC-Devel/XGC_core/cpp/grid.hpp
/u/gitlab-xgc/builds/YGMz2TJ8/1/xgc/XGC-Devel/XGC_core/cpp/grid.tpp

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